Tag Archives: Beddington

There has never been a more important time for every user on the River Wandle to Check, Clean, Dry – we have discovered New Zealand pigmyweed on the Wandle!

New Zealand pigmyweed, Crassula helmsii, is a highly invasive aquatic plant introduced to the UK in the 1900s as an ornamental “oxygenating plant” for ponds. It is thought to have escaped to the wild naturally (transported by wildfowl moving between ponds) or as ponds/aquaria were emptied out into nearby rivers.

Where would we find it?

New Zeland pigmyweed grows in still water, such as ponds or lakes, and also in slow moving waters like canals. It can even form dense colonies on damp mud and could therefore colonise marginal and impounded areas of the Wandle, and many of the backwater habitats.

Where is it in on the Wandle?

Currently, the only known New Zealand pigmyweed colony is in a small pond in Hackbridge / Beddington where it was discovered during our recent Wandle cleanup, highlighted on the map below.

Why is it bad?

New Zealand pigmyweed forms dense mats on the surface of the water, and up to 3 m under the water. These mats can shade out other plants below, resulting in a decline in oxygen in the water which has negative effects on invertebrates, frogs, newts and fish.

Much like floating pennywort, New Zealand pigmyweed can hinder recreational activities such as angling, by creating impenetrable “carpets” across open water bodies.

Finally, the control and eradication of this plant is very difficult. We are unlucky to have it, but lucky that we have discovered it with only one colony! In many other catchments where it has become established, water seems to have disappeared from the landscape.

What can I do to help stop the spread?

Avoid the pond! The pond where we have discovered the plant is not currently used for recreational purposes and ideally this would remain the case. For example, if you walk dogs in the area, please make sure they don’t go for a dip in this pond, as they could easily then transport it to wherever they next go for a swim. The plant can grow from tiny fragments that you might not even spot, so it is better to be safe than sorry!

Be vigilant! We believe (and hope!) this is the only case of New Zealand pigmyweed on the Wandle. However if you are out and about and believe you see the plant, please get in touch with us so we can come and investigate. You can call Polly on 07833 497 599 or email her at polly.bryant@wandletrust.org

Check, Clean, Dry! Finally if you are an angler on the river, or a use the river in another way such as canoeing, please make sure you are following biosecurity procedures such as Check, Clean, Dry. This will not only help reduce the risk of spread of New Zealand pigmyweed, but also the spread of other INNS and potential new INNS to the Wandle from other rivers.

Did you know last week was National Limerick Day? Well, if you didn’t, to get this blog started here is a Wandle limerick just for you:

But on with the cleanup…

As May is the start of Himalayan balsam season, our cleanup for the month focused on Beddington Park, with our usual volunteers joining forces with our Invasive Non-Native Species (INNS) teams: the River Rangers and the Hit Squad.

On the Wandle, Himalayan balsam is widespread and is not great news for the river. As part of our Wandle Invasive Species Project, we have been working with our River Rangers and Hit Squad to map the distribution of the plant on the river, and plan out action to work towards its eventual eradication.

Beddington Park, and Richmond Green just upstream, are considered the “source” of Himalayan Balsam for the Wandle, sending seeds downstream to colonise new sites, and are therefore priority areas to target.

On a sunny Sunday morning we were joined by 58 volunteers, including a local scouts group and our INNS Officer, Alan, with his trusty sidekick, Pepper the dog. After our Health & Safety briefing, we divided into two teams to get started: the cleanup crew and the balsam bashers.

Alan led the balsam bashers. Having worked on the site last year, Alan knew where the balsam would be and took a team of volunteers to remove every single plant.

Meanwhile, the cleanup crew got started on the river. The waders headed upstream from Church Lane towards Richmond Green and it wasn’t long until two trolleys were found.

And then not much longer until another two were discovered!

While working up the river, the cleanup crew kept an eye out for any Himalayan balsam growing on the banks of the Wandle, removing each plant as it was discovered.

In no time, we had made it to the weir and started emptying the trugs of rubbish into wheelbarrows.

Andy and Dave then led an “expert” team over the weir all the way to Beddington Lane to clean and check for balsam on a stretch we are usually unable to access.

We still had 40 minutes until lunch, so the rest of us headed back to the tent, got back in the Wandle and headed the other way to clean the river inside the park. It was close to spotless with only the odd can or bottle!

By lunchtime, the balsam team had finished, and the cleanup crew were in need of a drink. We all gathered back at the tent to have lunch and enjoy the sunshine.

After a longer lunch than usual, Alan took the Hit Squad (our team of volunteers trained in the management of Invasive Non-Native Species) to the small pond on London Road, just outside Beddington Park. Here there was some floating pennywort to remove as part of the Wandle-wide battle against the very invasive aquatic species. A rather terrifying discovery however, was the presence of New Zealand pigmyweed (Crassula helmsii) in the pond as well – photographs and samples were taken to confirm but this aquatic plant could cause real problems for the Wandle.

Photo Credit: GBNNSS

The rest of the waders got back in the Wandle and finished off the last 100 m in the park, finding an extra 3 or 4 bags of rubbish.

It was then time to check the skip was packed, and the van, and then all head home for a nice cold beverage.

Huge thanks to local volunteer Jackie for kindly funding this event, Sutton Council for purchasing some much needed litter pickers for us, everyone who helped unpack and pack up the van during the event, Rosie for supervising the Event Tent, Rosie and Alan for helping me back at the garage, Ann for baking some treats, and the Parks Team at Sutton Council for organising collection of all the rubbish the next day.

For our May cleanup, we headed to Beddington Park. The event was funded by the Living Wandle Landscape Partnership, a HLF funded scheme all about reconnecting people with the River Wandle.

I arrived an hour and a half early for this event. Why you may ask? Well I was woken up early with a small nightmare about the cleanup. I dreamt that I arrived at the event, unpacked the van and got everything set up myself. At 11 o’clock no volunteers had arrived and instead I get a phone call saying I was in the wrong place, and all the volunteers were waiting the other side of the park!

Luckily on the day, this didn’t happen.

For the day we had two aims: the first was our usual Wandle cleanup, and the second was to tackle invasive Himalayan balsam. In the past we’ve hunted balsam later in the year, when the plant stood high above the nettles with its bright pink flowers. Since we’re now getting closer to eradicating this species from Beddington Park and the upper Wandle, we decided to hit it even earlier in the year. But that did make spotting it slightly harder…

After a welcome talk and Health & Safety briefing we divided into teams. We had a wading team which went off into the Wandle to start removing rubbish, we had a bank support team to ferry the rubbish to the pile, a litter picking team around the park and two balsam pulling teams headed up by Theo Pike and Alan Martin.

As our Invasive Species Officer, Alan had surveyed the whole park ahead of the event and mapped where the small balsam plants could be found. But as they were only small, our volunteers needed a keen eye.

Meanwhile, our waders had already discovered a trolley!

Keeping an eye on the waders involved some getting past some extensive greenery on the sides of the banks, something we don’t have a problem with in winter.

By lunch time everyone was very hot and relieved to find a bit of shade from the hot sun. We sat around eating our lunches and drinking water, marvelling at the traffic chaos that was happening in the park. Car after car had turned up for a day in the sun only to result in a grid local down the narrow Church Road.

After lunch, the wading team heading further into the park and found another trolley, some traffic cones and a pot of paint.

After this though, the river was very clear and for once we felt like what we were doing was making a difference.

The balsam bashing team continued to tackle the wetland areas within the park, making sure every last plant was discovered and pulled up.

Finally after a long day in the sun, we packed up the van and all joined the traffic jam awaiting us trying to get down Church Road. What a palaver!

So what did we find? 1 bucket, 1 cage front, 1 dismantled tent and wire, 1 saucepan (thought this might be a good addition to my new flat), 1 pot of paint, 2 trolleys, 2 road work signs, 3 disposable BBQs, 5 traffic cones, 6 panels of metal fencing, 15 planks of wood and 20 bags of other junk. Plus all the tiny, tiny balsam plants….

Huge thanks to the Living Wandle Landscape Partnership for funding the event as part of the River Guardians projects, everyone who helped unpack and pack up the van during the event, Rosie & Dave for supervising the Event Tent, Theo & Alan for helping supervise the balsam bashing, John, Chris and Wally for helping to supervise the waders and the Parks Team at Sutton Council for organising collection of all the rubbish the next day.

This August was the first of our Capital Cleanups, kindly funded by the Mayor of London Capital Cleanup fund, held in Beddington Park on a very, very sunny and hot day. Not ideal weather for waders or wellies.

Rose was kind enough to help me load the van for this event, and I was thankful to have her with me as I turned up to site to find a car boot sale blocking the road. Luckily we squeezed the van through and set up in our usual spot ready for everyone to arrive.

This month we divided into three teams: the wading team; their wader support and balsam bashers. Theo had found several patches of Himalayan balsam in the park which he was keen to get on top of.

Within 20 minutes of sending the waders off to the river, they returned with two trolleys – not what I was expecting from a seemingly clear stretch of the Wandle! We were wondering if Asda would be wanting these back…

Soon more and more rubbish was coming out: tyres, pitch fork, metal fencing, large pieces of wood. For a narrow stretch of the river, it didn’t disappoint.

Behind the wading team, Theo and a couple of others were checking for individual Himalayan plants on the river bank to ensure we swept the whole park clean.

While this was going on, a brave team tackled a large infestation further into the park where the balsam was the height of trees and the stems were the thickest we’d ever seen them. A true balsam jungle amongst the nettles.

By lunchtime we were all very hot and ready for a cool drink. Jackie had kindly made us some jam tarts and I had baked three chocolate cakes which I then packaged to look like they had in fact been purchased… it’s the small touches.

After lunch we reluctantly put our waders and wellies back on and got back in the river. The wading team had cleared the river before lunchtime so after lunch we all focused on the balsam.

With the bulk of it removed, we were looking for smaller plants in the undergrowth which we wanted to catch before they set seed for another year. It took a little while to get our eyes honed in, but sure enough there were plenty hiding in the nettle jungle.

With Beddington Park cleared of balsam (for this year anyway) and rubbish we decided to finish a bit early to cool off.

Thank you to all the volunteers who came along and tolerated the heat for our event!

Huge thanks to everyone who helped pack up van after the event and Rose for helping me load and unload; Jackie for catering for our volunteers; Rose for supervising the Event Tent; Chris, Wally, Theo & Dave for helping supervise everyone on the day and the Waste Management Team at Sutton Council for organising collection of all the rubbish the next day.

This year there is a Heritage Lottery Fund project to restore Beddington Park, including the lakes and the River Wandle. The Wandle Trust have been involved in developing the bid with Sutton Council, providing expertise and guidance.

If you’re a user of Beddington Park or live close by, please take the time to complete this short survey to add your voice to how you use the Park and how you’d like to see it improved!

Because of the high ground water from the Caterham Bourne, ground water is being pumped into the foul sewer to relieve flooding issues in the Kenley and Purley area. This is also to protect Sutton and East Surrey’s potable water treatment works at Kenley.

Because of this there has been an increase in water flowing into Beddington Sewage Treatment Works and the Works are running under storm conditions. This means that the water coming from the works is a mixture of final treated sewage and storm water.

This has been going on for a few days now and could last for a while. However, several partner organisations including the EA, Thames Water, local Councils, the Police and Fire Brigade are working to manage the situation as immediately and effectively as possible.

Needless to say, we are taking this situation very seriously, and will post updates here as we receive them.

Update 1 (2.30pm, Monday 24th Feb): the EA have informed us that “free ammonia” NH3 levels are currently very low in the lower river, and no environmental damage has been detected so far. However, sludge which has been scoured from Beddington’s storm tanks may be getting into the river, and may look like shredded toilet paper or similar.

Update 2 (12pm, Tuesday 25th Feb): There is sewage debris, sludge and fungus being seen all along the river downstream of the effluent channel to at least Penwith Road. Water is not being pumped to the foul sewer now but the amount of water entering the sewage treatment works is still high and is therefore still operating under storm conditions. Dissolved oxygen levels are low but not thought to be a cause for concern yet.

If you’re out on the river and notice offensive smells, unusual quantities of sanitary products, or fish or other wildlife in distress below Beddington STW, please phone them in to the usual EA hotline: 0800 80 70 60. Thank you!

On the evening of Tuesday 21st August 2012, a fire at Thames Water’s Beddington Sewage Treatment Works resulted in a loss of power and the consequent release of partially treated sewage into the Wandle. This caused ammonia levels in the river to rise and oxygen levels to fall resulting in a fish kill. The sewage works is now fully functioning with only treated effluent being released and a cleanup operation is underway to remove any remaining dead fish.

A sample of the dead fish

Although what happened is broadly known, we’d like your help to piece together specific details. This will help the Environment Agency, Thames Water and ourselves with investigations to assess the impact of the event and to plan for future pollution prevention and restoration work. If you have any information, observations, photos, etc. please do post them through the comments section below. We’re particularly interested to know what time the pollution began and when it reached different points along the river as well as when/where any dead fish were seen and whether they were floating or on the river bed.

If you see any new pollution, please report it straight away to the Environment Agency incident line on 0800 80 70 60.

Thames Water and the Environment Agency are on site ready to respond by helping to elevate oxygen levels in the river. This will help to minimise any harm to fish and other organisms. At this stage we don’t know how severe any impacts from the anticipated pollution may be but we will add updates as we get them through the comments section below.

If anyone has any further information or experiences, please do add them through the comments box as well – all information helps us to build a better picture of what’s going on and ensure the best possible response. Thank you and thanks to those out there ready to deal with anything that comes the Wandle’s way!